#include<iostream>
using namespace std;


class person
{
public:
	//person(int a, int b, int c)
	//{
	//	A = a;
	//	B = b;
	//	C = c;
	//}
	person() :A(10), B(20), C(30) {

	}

	int A;
	int B;
	int C;


} ;

void test2() {
	person p;
	cout << p.A << endl;
	cout << p.B << endl;
	cout << p.C << endl;
}
int main1() {

	test2();
	system("pause");
	return 0;



}